Chen X, Mou L, Li L
Department of Chemistry, Shaoguan College, 512005 Shaoguan.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Apr;21(2):215-7.
A strong and stable room temperature phosphorescence (RTP) signal of phenanthrine aqueous solution in the absence of a protecting medium can be induced only by using Na2SO3 as deoxygenator and KI as heavy atom pertuber. The maximum phosphorescence intensity wavelengths are lambda ex/lambda em = 283/482,504 nm. It is also found that the kind and amount of organic solvent added to the luminescent system effects obviously the RTP properties. Under the present of 1% acetonitrile the RTP intensity is linear to phenanthrine concentration in the rage of 8.0 x 10(-7)-6.0 x 10(-6) mol.L-1 and 6.0 x 10(-6) mol.L(-1)-4.0 x 10(-5) mol.L-1, respectively. The detection limit is 2.6 x 10(-8) mol.L-1.
只有使用亚硫酸钠作为脱氧剂、碘化钾作为重原子敏化剂，才能在没有保护介质的情况下诱导菲水溶液产生强而稳定的室温磷光（RTP）信号。最大磷光强度波长为λex/λem = 283/482、504 nm。还发现，添加到发光体系中的有机溶剂的种类和用量对RTP性质有明显影响。在1%乙腈存在下，RTP强度在8.0×10(-7)-6.0×10(-6) mol·L-1和6.0×10(-6) mol·L(-1)-4.0×10(-5) mol·L-1范围内分别与菲浓度呈线性关系。检测限为2.6×10(-8) mol·L-1。
